M3.8 Depth: 10.0 km

M3.8 Earthquake near Uki, Kumamoto Prefecture (Japan)

UTC time: 2026-08-11 23:50:30 UTC Local time: —

About this earthquake

A magnitude M3.8 earthquake was recorded near Uki, Kumamoto Prefecture (Japan) on August 11, 2026 at 23:50 UTC. The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The data is provided by EMSC and cross-checked across seismological networks. Japan: over the past 24 hours, QuakeMap24 logged 6 earthquakes, the strongest at M5.0.

Details

Magnitude

M3.8

Depth

10.0 km

UTC time

2026-08-11 23:50:30 UTC

Local time

—

Country

Japan

State

Kumamoto Prefecture

City

Uki

Source

emsc

Coordinates

32.60000, 130.70000

Temperature

25.5°C

Map

Depth profile

Shallow

10 km

10 km — shallower than the regional average (32.2 km)

Regional average: 32.2 km

Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

Unzendake

Distance: 42 km ·Complex ·Elevation: 1'483 m ·Last eruption: 1996 ·Japan
Asosan

Distance: 48 km ·Caldera ·Elevation: 1'592 m ·Last eruption: 2021 ·Japan
Kujusan

Distance: 75 km ·Stratovolcano(es) ·Elevation: 1'791 m ·Last eruption: 1996 ·Japan
Kirishimayama

Distance: 76 km ·Shield ·Elevation: 1'700 m ·Last eruption: 2025 ·Japan
Yonemaru-Sumiyoshiike

Distance: 93 km ·Maar(s) ·Elevation: 40 m ·Last eruption: -6200 ·Japan
Yufu-Tsurumi

Distance: 99 km ·Lava dome(s) ·Last eruption: 867 ·Japan

Historic earthquake map · Japan

Open history map

Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Japan

Country overview

View earthquake KPIs, strongest and latest events, and averages for this country.

Stats (last 24h)

Global (24h)

624

Country (24h)